Add read permission to the model checkpoint files. This helps when we convert to singularity image (which doesn't have access to files owned by root, if the read permission wasn't set.)
Add read permission to the model checkpoint files.
This helps when we convert to singularity image (which doesn't have access to files owned by root, if the read permission wasn't set.)

PiperOrigin-RevId: 242469455

google/deepvariant,google/deepvariant,google/deepvariant